The world was struck a terrible blow this year when it learned of the tragic death of Chester Bennington, the lead singer of Linkin Park. Every death is a tragedy, of course, but this one felt so much worse. He was a hugely successful musician with hordes of loving fans across the world. Where did it all go so wrong? From his childhood to the final days, we chart the tumultuous life of this great personality - and a big clue to this terrible loss...